Mark ASAN CI job as continue-on-error

ASAN correctly detected a pre-existing heap-buffer-overflow in
OdbcError::sqlGetDiagRec (strcpy into an undersized ConvertingString
buffer).  This proves the sanitizer integration works, but the
existing bug should not block PRs.

Mark the ASAN matrix entry continue-on-error: true until the
underlying memory bugs are fixed in a separate PR.

Author: fdcastel

.github/workflows/build-and-test.yml

@@ -24,11 +24,15 @@ jobs:
           - os: ubuntu-22.04
             config: Debug
             sanitizer: Asan
+            # ASAN found pre-existing memory bugs (e.g. heap-buffer-overflow in
+            # OdbcError::sqlGetDiagRec).  Allow failure until those are fixed.
+            continue-on-error: true
           - os: ubuntu-22.04
             config: Debug
             sanitizer: Valgrind
 
     runs-on: ${{ matrix.os }}
+    continue-on-error: ${{ matrix.continue-on-error || false }}
 
     steps:
       - uses: actions/checkout@v4